[BIC-announce] Séminaire UNF _ Anders Elkund - lundi 6 août 1pm
Claude Godbout
claude.godbout at criugm.qc.ca
Thu Jul 26 13:33:45 EDT 2018
LES SÉMINAIRES DE LUNF / SEMINAR UNF SERIES
Présentateur/ Speaker:
Anders Eklund, Ph.D.
Titre/ Title:
Cluster failure revisited: Impact of first level design and physiological
noise on cluster false positive rates.
Endroit/ Where:
CRIUGM Local E1910 ( <http://www.criugm.qc.ca/en/contact.html>
http://www.criugm.qc.ca/en/contact.html)
Date/ When:
Lundi 6 août, 13h-14h/ Monday, August 6th 1pm-2pm
*La conférence sera présentée en anglais/The seminar will be present in
English
Dr. Anders Eklund is a research fellow at Linköping University (Sweden) in
the Department of Biomedical Engineering (IMT). His main research interests
are within analysis of functional magnetic resonance imaging (fMRI) data,
mainly regarding development and testing of statistical algorithms. Other
interests include high performance computing using graphics cards, image
registration and machine learning.
Abstract:
Methodological research rarely generates a broad interest, yet our work on
the validity of cluster inference methods for functional magnetic resonance
imaging (fMRI) created intense discussion on both the minutia of our
approach and its implications for the discipline. In the present work, we
take on various critiques of our work and further explore the limitations of
our original work. We address issues about the particular event-related
designs we used, considering multiple event types and randomisation of
events between subjects. We consider the lack of validity found with
one-sample permutation (sign flipping) tests, investigating a number of
approaches to improve the false positive control of this widely used
procedure. We found that the combination of a two-sided test and cleaning
the data using ICA FIX resulted in nominal false positive rates for all
datasets, meaning that data cleaning is not only important for resting state
fMRI, but also for task fMRI.
I hope to see you there / Jespère vous voir nombreux.
Pierre Bellec
Assistant professor/Professeur adjoint sous octroi, Département
d'informatique et de recherche opérationnelle ( <http://diro.umontreal.ca/>
DIRO)
Director/Directeur, Unité de Neuroimagerie Fonctionnelle (
<http://unf-montreal.ca> UNF)
Researcher/Chercheur Centre de recherche de l'institut Universitaire de
gériatrie de Montréal ( <http://www.criugm.qc.ca/> CRIUGM)
Université de Montréal, Montréal, Canada
Phone +1 514 713 5596
<http://simexp-lab.org/brainwiki/doku.php?id=pierrebellec> Coordinates/c
<http://simexp-lab.org/brainwiki/doku.php?id=pierrebellec> oordonnées.
<http://simexp-lab.org> Laboratory/Laboratoire SIMEXP
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.bic.mni.mcgill.ca/pipermail/bic-announce/attachments/20180726/3618981c/attachment.html>
More information about the BIC-announce
mailing list